Edwards, J. (1962). Differential Calculus for beginners. Macmillan & Co. Ltd.
Lua i Stíl Chicago (17ú heag.)Edwards, Joseph. Differential Calculus for Beginners. London: Macmillan & Co. Ltd, 1962.
Lua MLA (9ú heag.)Edwards, Joseph. Differential Calculus for Beginners. Macmillan & Co. Ltd, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.